Urban decay (also known as urban rot and urban blight) is the sociological process by which a previously functioning city, or part of a city, falls into disrepair and decrepitude. It may feature deindustrialization, depopulation or deurbanization, economic restructuring, abandoned buildings and infrastructure, high local unemployment, fragmented families, political disenfranchisement, crime, and a desolate city’s cape, known as grey field or urban prairie.